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WO2002048783A2 - Cellule a liquide empilee - Google Patents

Cellule a liquide empilee Download PDF

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Publication number
WO2002048783A2
WO2002048783A2 PCT/IB2001/002514 IB0102514W WO0248783A2 WO 2002048783 A2 WO2002048783 A2 WO 2002048783A2 IB 0102514 W IB0102514 W IB 0102514W WO 0248783 A2 WO0248783 A2 WO 0248783A2
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
layer
phase
stratified
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2001/002514
Other languages
English (en)
Other versions
WO2002048783A3 (fr
Inventor
Roel Penterman
Dirk J. Broer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to US10/203,577 priority Critical patent/US6788360B2/en
Priority to EP01270802A priority patent/EP1264209A2/fr
Priority to KR1020027010451A priority patent/KR20020073550A/ko
Priority to JP2002550032A priority patent/JP2004515824A/ja
Publication of WO2002048783A2 publication Critical patent/WO2002048783A2/fr
Publication of WO2002048783A3 publication Critical patent/WO2002048783A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/38—Polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1341—Filling or closing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133368—Cells having two substrates with different characteristics, e.g. different thickness or material
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31616—Next to polyester [e.g., alkyd]
    • Y10T428/3162—Cross-linked polyester [e.g., glycerol maleate-styrene, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
    • Y10T428/31794—Of cross-linked polyester

Definitions

  • the invention relates to a stacked liquid cell, such as a stacked liquid crystal cell for use in a stacked display device, in particular a liquid crystal display device.
  • the invention further relates to a method of manufacturing a liquid cell, in particular a stacked liquid cell.
  • a stacked liquid cell generally comprises a plurality of cells (sub-cells) stacked one on top of the other.
  • Each (sub-)cell comprises a liquid layer dispersed between substrate layers which serve to separate and confine the liquid layers during use and/or manufacture.
  • the sub-cells together form a stack of liquid layers dispersed between substrate liquid layers, in which substrate layers may be shared between (sub-)cells.
  • a stacked liquid crystal cell at least one but typically all liquid layers are electro-optically active liquid crystal layers.
  • Such stacked LC cells may have advantages compared to single liquid layer devices.
  • a stacked liquid cell may increase the active display area available per color by as much as a factor of three.
  • a cholesteric display having a stack of cholesteric liquid crystal layers the pitch of which is selected such that R G and B is reflected in different layers is an exmaple.
  • a first liquid layer may be a liquid crystal layer and a second liquid layer may serve as a temperature compensated compensation layer for the first liquid crystal layer.
  • stacked liquid crystal cells are relatively thick and the distance between the liquid layers is relatively large. Such a large thickness is generally undesirable. Furthermore, in stacked liquid cells where the liquid layers are partitioned to form individually addressable pixels the large thickness may lead to substantial parallax effects.
  • the thickness of the stacked liquid cell and the distance between the liquid layers is, to a large extent, caused by the relatively thick substrates between which the liquid layers are dispersed. It is an object of the invention, inter alia, to alleviate these drawbacks and provide a stacked liquid cell having a relatively small thickness. More in particular, for example in case of a pixelated stacked display cell, the stacked liquid cell is to have a structure which allows parallax effects to be reduced. Furthermore, the stacked liquid cell is to allow facile and cost effective manufacture. In particular, the stacked liquid cell, or at least a substantial part thereof, is to be such as to be capable of being manufactured in a continuous process, or even a roll-to-roll process.
  • a stacked liquid cell comprising a stack of liquid layers and substrate layers, wherein each liquid layer is dispersed between substrate layers, and wherein a liquid layer and a substrate layer adjacent thereto are replaced with a liquid layer and a polymeric layer of a stratified-phase-separated composite.
  • the stacked liquid cell comprises a stack of liquid layers and substrate layers, the liquid layers being dispersed between the substrate layers.
  • at least one liquid layer and adjacent substrate layer are replaced with a liquid layer and a polymeric layer of a stratified-phase-separated composite.
  • a stratified-phase-separated composite is obtainable by stratification of a stratified-phase-separable composition into a polymeric layer and a liquid layer.
  • the polymeric layer and the liquid layer are separate, continuous layers arranged adjacent to each other sharing a common interface, the interface being sufficiently smooth to render the composite suitable for optical applications such as displays.
  • the stratification is a controlled form of phase separation, more particularly referred to as stratified-phase-separation.
  • Conventional substrate layers have a thickness in the millimeter range, that is at least a thickness of 0.2 to 0.5 mm, typically even larger to ease handling.
  • Conventional substrates need to have such a minimum thickness because of the manner conventional (stacked) cells are manufactured.
  • a cell is manufactured by gluing together along their edges two opposite substrate layers to form an empty cell which is then filled with liquid to form the liquid cell.
  • Such a method generally requires both substrate layers to be self-supporting.
  • a constant liquid layer thickness is to attained throughout the cell the substrate layers need to be sufficiently rigid which also adds to the thickness.
  • the layer from which the stratified-phase-separated composite is obtained may be formed using conventional thin film forming methods, and the polymeric layer of the stratified-phase-separated composite is formed in situ - at the same time as the liquid layer -, a thin stratified-phase-separated composite, more particular a thin, at least relative to the thickness of a conventional substrate layer, polymeric layer can be made in an easy and cost effective manner.
  • the thickness of the polymeric layer is in the micrometer range. Typically, the thickness of the polymeric layer may be less than about 100, 50, 20 or 10 ⁇ m.
  • coating and printing methods such as spin-coating, web-coating, ink-jet printing screen printing and the like, even thinner polymeric layers are readily available such as those having a thickness in the range 0.1 to 10 ⁇ m. Therefore, in accordance with the invention, replacing a conventional substrate layer with a polymeric layer of a stratified-phase-separated composite reduces the thickness of the stacked liquid cell and, if the polymeric substrate layer is an interior layer of the stack the distance between liquid layers is reduced which, in turn reduces parallax.
  • Parallax is of particular importance in non-emissive optical applications such as displays. From the viewpoint of reducing thickness and parallax effects, the thickness of the polymeric layer is to be as small as possible. However, being a substrate layer the polymeric layer needs to provide the required support, ruggedness and mechanical integrity. It may need to serve as a substrate for the stacking of further layers such as a further stratified-phase-separated composite or the stacking of a conventional cell. Such requirements set a minimum on the polymeric layer, the specific value of which is to be determined on case-by-case basis. A minimum polymeric layer thickness would be typically 0.1 ⁇ m, or 0.5 ⁇ m or even larger 1 ⁇ m.
  • a stratified-phase-separated composite is obtainable by stratifying a stratified-phase- separable composition. Stratification is brought about by phase-separation. Suitable methods of phase-separation include polymerization-induced phase-separation, solvent-induced phase- separation or temperature-induced phase-separation such phase-separation methods being known in the art as such.
  • the layer of stratified-phase-separable composition is provided on a substrate which has a better wettability for the liquid than for the polymer of the polymeric layer or the monomer(s) from which the polymer is obtained.
  • the stratified-phase-separable material is dispersed between a first and second substrate, the first substrate being well-wettable for the liquid and the second being well-wettable for the polymer/monomer from which the polymeric layer is obtained.
  • the stratified- phase-separable material is photo-polymerizable and comprises a photo-polymerization dye which is capable of least partially absorbing the radiation used to photo-polymerize. Due to the dye a radiation intensity gradient is set up within a layer of stratified-phase-separable material which in turn leads to selective polymerization in areas of highest intensity which are typically the areas closest to the radiation source.
  • the liquid may be selected to serve as a photo-polymerization dye or a separate dye may be added for this purpose.
  • the dye is selected to be reactive, or more particular co- polymerizable, with the polymer and/or monomers contained in the stratified-phase-separable material which results in selective accumulation of the dye in the polymeric layer.
  • Suitable stratified-phase-separable compositions comprise a polymer and a liquid, or in the case of a (photo-)polymerizable stratified-phase-separable composition a liquid and a (photo-)polymerizable monomer or mixture of such monomers.
  • the liquid layer and/or polymeric layer is typically transparent, in particular to visible ligth.
  • the amount liquid versus polymer is determined by the ratio of polymeric and liquid layer thickness required.
  • the weight fraction of liquid may vary from 1 to 99 wt% or more particular, 2 to 98 wt%.
  • at least 5 wt% liquid is used, or even more than 10 wt%.
  • Preferably, to improve stratification at least 25 wt% liquid is used.
  • Suitable polymerizable monomers and polymers include monomers for performing a polycondensation, such as monomers for obtaining a polyether, a polyester or a polyamide, monomer for performing a polyaddition, a ringopening reaction, a cycloaddition, a chain polymerization or a step polymerization and polymers obtained therefrom.
  • monomers for free-radical chain polymerization such as monomers for obtaining a polyether, a polyester or a polyamide, monomer for performing a polyaddition, a ringopening reaction, a cycloaddition, a chain polymerization or a step polymerization and polymers obtained therefrom.
  • monomers for free-radical chain polymerization such as monomers for obtaining a polyether, a polyester or a polyamide, monomer for performing a polyaddition, a ringopening reaction, a cycloaddition, a chain polymerization or a step polymerization and polymers obtained
  • Examples of preferred monomers which may be in particular be used for polymerization-induced phase-separation include a thiol-ene system, an oxetane, epoxide, a vinylene, a vinylether, an acrylate, a methacrylate or a cinnamate monomer may be suitably used.
  • the polymerizable group of the preferred monomers all have a functionality of 2 meaning that monomers having one polymerizable group, that is mono-(meth)acrylates, mono-epoxides, mono-vinylethers, mono-oxetane, mono-vinylenes, and dithiol di-ene systems, suffice to form a linear polymer.
  • monomers comprising two or more polymerizable groups each having a functionality of at least 2 may be used, such as di(meth)acrylates, di-vinlyethers, di-oxetanes, di-vinylenes, di-epoxides, or thiol-ene systems comprising trithiols or di-enes or di-enes provided with a mercapto group or ene- functionalized dithiols or higher homologues of such monomers, all of which are known in the art per se.
  • Cross-linked cinnamates require monomers carrying at least three cinnamate groups. Particularly preferred are combinations of monomers having one polymerizable group and monomers having two or more polymerizable groups as they allow the degree of cross-linking to be freely selected.
  • the stratified-phase-separable material may comprise just one type of monomer to produce a homopolymer but generally it will contain more than one type to obtain copolymers, terpolymers or higher.
  • the monomer may itself be a polymer also referred to as a prepolymer which is further polymerized and/or crosslinked to obtain the crosslinked polymer.
  • Different non-co-polymerizable monomers may also be used to obtain a polymer blend which may or may not be phase-separated.
  • compositions for obtaining a polymer dispersed liquid crystal are amply described in the prior art.
  • liquids used to form the liquid layers of the stack including the liquid layers which are part of the stratified-phase-separated composite may be of any suitable form such a water-based or organic-solvent-based liquids, inks, dispersions, dyes, pastes, gels and the like.
  • Each liquid layer may have the same composition or liquid layers having mutually different compositions may be used.
  • at least one of the liquid layers is a liquid crystal layer or, in an even more particular embodiment, all liquid layers are liquid crystal layers.
  • the liquid layer may have any desirable function.
  • the liquid layer may have an optical, a mechanical, a chemical, an electrical, a magnetic or an electro-magnetic function or any other passive function.
  • the liquid layer may have an active function, meaning that the layer can be brought into states having different properties in response to an external stimulus such as radiation such as light, particle beams, mechanical stress, chemical reactions, electric and magnetic fields or currents.
  • electro-optical liquid layers that is layers having an optical function and layers of which the optical properties can be changed in response to an electric field.
  • Different liquid layers and substrate layers of the stacked liquid cell may have the same function, effect or property(ies) or have different effects, functions and/or properties.
  • the liquid layers of a sub-set of the liquid layers of a stacked liquid cell in accordance with the invention may have mutually independent functions so as to provide a composite functionality.
  • a stacked liquid cell for use in a full color display has three separate liquid layers for displaying the primary colors red green and blue (RGB), the liquid layers are mutually independently addressable to attain the composite functionality of being capable to display the full color gamut.
  • the layers may interact to provide a particular function or effect.
  • the function of a liquid layer may be to modify or enhance the effect or functionality of another layer, generally termed an auxiliary liquid layer.
  • a compensation layer may be combined with a liquid crystal layer to improve viewing angle dependency.
  • the substrate layers may be of any material, organic, in particular polymeric or inorganic such as any type of glass, ceramic, metallic. Even a silicon substrate provided with an integrated circuit may be used.
  • the properties and material from which a substrate layer (including any polymeric layer of a stratified-phase-separated composite) is formed depend on the function of the stacked liquid cell and the position of that substrate layer in the cell. For example, in optical applications, interior substrate layers are typically transparent. Polymeric substrates are useful for obtaining rigid, flexible, bendable, foldable and/or wrappable, substrates.
  • the function of the substrate layer (including any polymeric layer of a stratified-phase-separated composite) is principally to support and separate the liquid layers of the stack. However, it may also be used to provide an auxiliary function with respect to a liquid layer of the stack such as a function mentioned hereinabove with respect to liquid layers having a passive function.
  • a substrate layer may be a single layer or may be itself a stack or laminate of sub-layers, such laminated substrate layer being of particular use if the substrate layer is to perform auxiliary functions or if the substrate layer separates two liquids which differ widely in properties such as a polar liquid and a relatively apolar liquid.
  • the stacked liquid cell is a stacked display cell or more particular a stacked liquid crystal display cell if the liquid layer is a liquid crystal layer.
  • liquid-based display cells include electrophoretic displays and LC displays.
  • separator means may be conventional spacers provided lithographically or by adding suitable formed spacer particles to the liquid.
  • separator means in the case of a stratified-phase-separated composite, separator means (supporting means) may be provided by pattern- wise irradiating a layer of a photo-polymerizable stratified-phase- separable composition as explained in more detail in EP application having application number 01204081.2.
  • At least one of the liquid layers is an electro-optical liquid crystal layer.
  • the stacked liquid cell is then an electro-optical liquid cell or, if used to display, a stacked liquid crystal display cell.
  • the stacked liquid cell in accordance with this embodiment comprises electro-optical liquid crystal material which can be switched between a first and a second oriented state by means of an electric field.
  • auxiliary layers such as electrode layers for supplying the field, alignment layers for anisotropically orientation of the liquid crystal layer, polarization layers to generate polarized light incident on the liquid crystal layer or to analyze polarized light reflected or transmitted by the liquid crystal layer, retardation layers also referred to as compensation layers, reflector layers and or color filter layers.
  • Such auxiliary layers, polarizer layers in particular may be arranged either in-cell that is between a liquid layer and adjacent substrate layer or outside the cell, that is arranged on a substrate layer side facing away from the liquid layer with which the auxiliary layer is intended to cooperate.
  • the stacked liquid cell comprises conventional cells
  • conventional auxiliary layers and LC effects may be suitably combined with those cells. Details of combinations of auxiliary layers and a stratified-phase-separated composite as well as suitable LC effects are described in EP application having application number 01204081.2.
  • the stratified-phase-separated composite comprises an electro-optical liquid crystal layer
  • the stratified-phase-separated composite is preferably applied on a conventional substrate layer carrying an in-plane switching arrangement and the liquid crystal layer is capable of being switched by such an electrode arrangement.
  • the stacked liquid cell may comprise a single stratified-phase-separated composite combined and one or more conventional cells or may comprise several stratified- phase-separated composites optionally combined with one or more conventional cells or even all liquid layers may be provided by means of stratified-phase-separated composites.
  • the stack comprises adjacent stratified-phase-separated composites stacked such that the liquid and the polymeric layers alternate in sequence.
  • Stacking adjacent stratified-phase-separated composites in alternating sequence allows the polymeric layer of any such stratified-phase-separated composite to serve as a substrate for the provision of a further stratified-phase-separated composite.
  • an unlimited number of stratified-phase-separated composite can thus be stacked on top of each other. Since for each such composite a reduction in thickness compared to a conventional cell is obtained a very thin stacked liquid cell results.
  • electrode layers are required to switch an electro-optical liquid layer, preferably an in-plane switching electrode arrangement is used. However, sandwich electrode arrangements may also be used.
  • the stack comprises adjacent stratified- phase-separated composites of which the polymeric layers are stacked back to back.
  • Stacking adjacent stratified-phase-separated composites with the polymeric layers back to back allows both the exterior substrate layers of the stack to be formed from conventional substrates. This provides the stack with a good mechanical stability and ruggedness.
  • having conventional substrates on both exterior sides allows more electrode layers to be provided on such conventional substrates. This is advantageous as conventional substrates allow a wide range of electrode materials to be used, including indiumtinoxide (ITO).
  • ITO indiumtinoxide
  • a stack having back to back polymeric layers having conventional exterior substrates on both sides is simple. First of all, a first and a second stack each having at one exterior end a conventional substrate and at the other exterior end a polymeric layer of a stratified-phase-separated composite is provided. Then, the first and second stack are merged with the polymeric layers facing each other to form a stack having back to back polymer layers and a conventional substrate layer at each end.
  • the invention also relates to a method of manufacturing a liquid cell comprising a stratified-phase-separated composite.
  • a method of manufacturing a liquid cell comprising a stratified-phase- separated composite also referred to as the double substrate method, resembles the conventional method of cell making and comprises forming an empty cell formed by gluing together along their edges, two conventional self-supporting substrates, and then filling the empty cell with stratified-phase-separable composition and bring about stratification of the stratified-phase-separable composition to form a stratified-phase-separated composite comprising a polymeric layer and a liquid layer.
  • this double substrate method is not preferred, because, in order the achieve the reduction in thickness the present invention aims for, the substrate situated adjacent the polymeric layer must be removed after stratification. This is generally difficult to do.
  • the opposite substrate comes off as the adhesion of the substrate to the polymeric layer is generally much better than the adhesion of the opposite substrate to the liquid layer.
  • a preferred method of manufacturing a liquid cell comprising a stratified- phase-separated composite comprising a polymeric layer and a liquid layer comprises the steps of: providing a substrate; providing, on the substrate, a layer of a stratified-phase-separable composition; and bringing about stratification of the thus formed layer of stratified-phase-separable composition to form the stratified-phase-separated composite comprising the polymeric layer and the liquid layer.
  • This method may be successivefully executed with just a single substrate, hence the method is also referred to as the single substrate method.
  • the single substrate method is also described in European patent application having application number 00204529.2 in which the primary focus was on stratified-phase-separated composites comprising liquid crystal layers.
  • the single substrate method is not limited to liquid crsytal layers. It may be suitably combined with any liquid. Examples of suitable liquids have been described hereinabove.
  • the single substrate method produces a liquid cell wherein the polymeric layer of the stratified-phase-separated composite takes the place of one of the cell's substrates.
  • the liquid is present as a layer distinct and separate from the polymeric layer, is continuous throughout the cell and has a well defined thickness throughout the cell.
  • the single substrate method is a self-aligned method.
  • the thickness of the liquid layer is determined by the amount of stratified-phase-separable material deposited per unit area. It is not necessary to use spacers to define the thickness desired.
  • the single method allows a liquid layer which is uniform in thickness to be prepared even if the substrate surface onto which the layer of stratified-phase-separable material is provided is bent or curved in accordance with a predetermined shape.
  • the single method is also attractive in that it allows the liquid layer and one substrate layer to be formed at the same time which reduces time of manufacture.
  • the single substrate method may be performed in a batch process but may also - in contrast to conventional liquid cell making - be readily applied in a continuous process, even for use in a roll-to-roll manufacturing method.
  • the single substrate method is thus particularly suited to produce large area liquid cells.
  • the single substrate method is of particular use for the manufacture of a stacked liquid cell but the single substrate method and the liquid cell produced by the single substrate method has broader use.
  • the single substrate method may be used to manufacture any liquid layer containing product.
  • the method may be used to manufacture a liquid cell for holding liquid.
  • the single substrate method is suitable for obtaining liquid cells which are thin, for example having a thickness of about 0.5 mm to about 1 cm yet have a large surface area, for example a surface area of about
  • liquid contained in such a thin, large-area liquid cell is present in the form of a liquid layer typically having a thickness of about 0.1 ⁇ m to about 0.5 mm. If the liquid is selected to be polymerizable, the single substrate method in accordance with the invention may also be used for solid-state applications.
  • the single substrate method is an easier and more rapid method to manufacture such thin, large-area liquid cells than the conventional method of first providing an empty cell which is then filled with liquid.
  • the thickness of the stratified-phase-separated composite of the liquid cell obtained using the single substrate method can be anything between 1 and 500 ⁇ m, or better
  • liquids and polymers for use in the liquid and polymeric layers of the stratified-phase-separated composite and suitable thicknesses of such layers have been described hereinabove.
  • the stratified-phase-separable material may be formulated to have good film- forming properties and may be formulated to be applied using conventional wet film forming methods.
  • film forming method refers to a coating or a printing method or the like.
  • Suitable coating methods include but are not limited to painting, solvent casting, doctor-blading, wired rod coating, extrusion coating, die-slot coating, spin-coating, dip-coating, spray-coating, roll coating Langmuir-Blodgett, and web- coating.
  • Suitable printing methods include but are not limited to ink-jet printing, silkscreen- printing, flexo-graphic printing, offset printing and the like.
  • the single substrate method also comprises dispersing the layer of stratified-phase-separable composition between two substrates, but in that case, unlike the conventional method where the two substrates are glued together, the two substrates should not be attached to each other such that their relative position is fixed.
  • the substrate onto which the stratified-phase-separable composition is applied in the single substrate method may be a single substrate layer or may be a stack of substrate layers between which liquid layers are dispersed.
  • the single substrate method may be repeated a number of times in succession, a next stratified-phase-separated composite being provided by applying stratified-phase-separable composition on the polymeric layer of a previous stratified-phase-separated composite.
  • the single substrate method may be used in a method of manufacturing a stacked liquid cell comprising a stack of liquid layers and substrate layers, wherein each liquid layer is dispersed between substrate layers and wherein a liquid layer and an adjacent substrate layer are replaced with a liquid layer and a polymeric layer of a stratified-phase-separated composite, the method comprising:
  • stratifying the stratified-phase-separable composition to form a stratified-phase-separated composite comprising a liquid layer and a polymeric layer, the liquid layer being formed on the substrate layer or sub-stack side;
  • a conventional substrate is provided successively with a first and second stratified- phase-separated composite, the liquid and polymeric layers being stacked in alternating sequence.
  • the single conventional substrate is subsequently removed by separating the stacked liquid cell at the first liquid layer adjacent the substrate. Any remaining liquid is also removed to produce a liquid cell of a stratified- phase-separated composite comprising a liquid layer dispersed between a first and second polymeric layer, where both polymeric layers and the liquid layer is obtained by stratification.
  • a liquid cell can be made extremely thin compared to conventional liquid cells as both substrate layers to hold the liquid are formed in situ and can thus be made much thinner than conventional substrates.
  • the first and second polymeric layer cooperate to provide a mechanically robust liquid cell. This is particularly so if the first and second polymeric layer are connected to each other by separating means of the type described hereinabove.
  • An alternative method to manufacture a stratified-phase-separated composite comprising a first and a second polymeric layer and, dispersed therebetween, a liquid layer, comprises providing a photo-polymerizable stratified-phase-separable composition comprising a photo-polymerization dye on a substrate and then irradiating the stratified- phase-separable composition on both sides such that a radiation intensity gradient is set up which has a radiation intensity which is at a minimum in the interior of the layer and becomes larger towards both sides of the layer.
  • Fig. 1 shows, schematically, a cross-sectional view of a prior art stacked electro-optical liquid display cell
  • Fig. 2 shows, schematically, a cross-sectional view of a stacked liquid display cell in accordance with the invention
  • Fig. 3 shows, schematically, a cross -sectional view of a second stacked liquid display cell in accordance with the invention
  • Fig. 4 shows, schematically, a cross-sectional view of a third stacked liquid display cell in accordance with the invention
  • Fig. 5 shows, schematically, a cross-sectional view of a fourth stacked liquid display cell in accordance with the invention
  • Fig. 6 shows, schematically, a cross-sectional view of a fifth stacked liquid display cell in accordance with the invention
  • Fig. 7 shows, schematically, a cross-sectional view of a sixth stacked liquid display cell in accordance with the invention.
  • Fig. 1 shows, schematically, a cross-sectional view of a prior art stacked display cell 1. Only layers relevant for understanding the problems associated with the prior art device are shown.
  • the display cell could be an LC display but this is not essential, other fluid-based non-emissive displays could be used as well.
  • the display cell 1 may be of any type such as a segmented, an active matrix or a passive matrix cell.
  • the cell can be transmissive, reflective or transflective.
  • the display cell 1 comprises a stack 10 of substrate layers 2 and electro- optical liquid layers 4 dispersed therebetween.
  • the substrate layers 2 are provided with electrodes 6 for operating the electro-optical liquid layers 4.
  • the electrodes 6 are laid out in a sandwich arrangement such that liquid is sandwiched between a top and bottom electrode and the liquid so sandwiched can be switched.
  • Each pair of top and bottom electrodes 6 is connected to an electrical power source 11 such that each pair is independently addressable.
  • the stacked liquid cell 1 comprises a stack of mutually independently addressable sub-cells 8 and pixels 12.
  • the function of the top liquid layer may be for example to selectively display a red color and the function of the bottom layer to display a green color thus producing a multi-color display cell or a full-color display if the stacked liquid cell 1 includes a further sub-cell capable of displaying blue.
  • Each sub-cell 8 may be manufactured in the conventional manner of forming an empty sub-cell formed from two opposed substrate layers glued together which is then filled with liquid to form a liquid layer. The sub-cells are then stacked to form the stacked display cell.
  • This conventional method of (sub)-cell making requires the use of self- supporting substrates which implies that they need to be relatively thick, say a thickness in the millimeter range, typically about 0.2 to 0.5 mm or more. This results in a relatively thick stacked liquid cell and a relatively large distance between the liquid layers of the stack 10.
  • the large distance between the liquid layers 4 causes undesirable parallax effects as shown in Fig. 1.
  • the direction of light transmitted or reflected along a normal axis 14 is lined up with the stacking direction of the color of the pixels 12 and in the case of multi-color device, the color perceived will the color produced by the pixels 12 which are directly below each other. However, this color will not always be the color perceived at an off -normal axis 16. If the off-normal angle is large enough, light reflected or transmitted along such axis 16 passes pixels 12 which are not directly above each other giving rise to a different color. The color perception is thus viewing angle dependent.
  • Fig. 2 shows, schematically, a cross-sectional view of a stacked electro-optical liquid display cell in accordance with the invention.
  • the stacked display cell 20 differs from the prior art device 10 in that the stack 30 of liquid and substrate layers of the stacked liquid cell 20 comprises, instead of a combination of a liquid layer 4 and a conventional adjacent substrate layer, a liquid layer 24 and an adjacent polymeric substrate layer 22 of a stratified- phase-separated composite 23.
  • the polymeric layer 22 of the stratified-phase-separated composite 23 is formed in situ during manufacture of the stacked liquid cell and at the same time as the liquid layer 24 the polymeric layer need not be self supporting and hence can be made much thinner than a conventional substrate layer.
  • the polymeric substrate layer 22 may have a thickness of
  • the stacked liquid cell 30 may be manufactured by first providing a conventional self-supporting substrate layer 2 (the substrate 2 of sub-cell 28), with electrodes 6. Subsequently, the stratified-phase-separated composite 23 is formed. This is achieved by first forming a layer of stratified-phase-separable material on the substrate, and then stratifying the stratified-phase-separable material to form the stratified-phase-separated composite 23. Since this method of manufacturing the stratified-phase-separated composite involves the use of only one substrate the method is also referred to as the single-substrate method.
  • the stratified-phase-separated composite may be formed between two conventional self-supporting substrates, also referred to as the double substrate method, but this is not preferred as it entails removing the conventional substrate adjacent the polymeric layer after stratification in order the achieve the reduction in thickness the present invention aims for.
  • top electrode layer 6 needed to switch the liquid layer 22 after the polymeric layer 22 is formed and on top thereof. It is preferred to deposit the top electrode layer 6 by means of wet deposition method such as coating or printing method. Preferred electrode materials which may be provided using such methods include conducting polymers such as poly-3,4- ethylenedioxythiophene and silver pastes. Further details regarding electrode layers provided on top of stratified-phase-separated composites are described in EP application having application number 01204081.2. With the top electrode layer adjacent the polymeric layer 24 in place, the sub- cell 28 is complete. It may be attached to a separately manufactured conventional cell 8 to form the complete stack 30.
  • Fig. 3 shows, schematically, a cross-sectional view of a second stacked liquid display cell in accordance with the invention.
  • the stacked liquid cell 40 differs slightly form the stacked liquid cell 20 of Fig. 2 in that the order of the liquid layer 24 and the polymeric layer 22 has been reversed. In doing so, the thickness of the stacked liquid cell may be further reduced while keeping the reduction in parallax because the stacked liquid cell 40 contains one conventional substrate layer less than the stacked liquid cell 20.
  • Manufacture facilitated by preparing a conventional sub-cell 8 which is then used as the substrate onto which a stratified-phase-separated composite is provided using the single-substrate method described above.
  • Fig. 4 shows, schematically, a cross-sectional view of a third stacked liquid display cell in accordance with the invention.
  • the stacked liquid cell 60 differs from the stacked liquid cell 40 in the electrode arrangement.
  • the stacked liquid cell 60 has an in-plane switching electrode layer 66 comprising independently addressable electrode pairs, each pair of electrodes being interdigitated.
  • An advantage of this in-plane switching arrangement is that the electrodes are in direct contact with the liquid layer they are arranged to switch. This is in contrast with the sandwich arrangement shown in Fig. 3 in which the top electrode layer 6 is separated from the liquid layer by the polymeric layer 22.
  • the in-plane switching arrangement reduces dielectric losses and avoids voltage drop across non-functional layers. Further, since all electrodes needed to switch the liquid layer are located on a conventional substrate 2, the range of electrode materials which may be suitably used to form the electrode is increased.
  • ITO indium tin oxide
  • Fig. 5 shows, schematically, a cross-sectional view of a fourth stacked liquid display cell in accordance with the invention.
  • Fig. 5 shows a stacked liquid cell 80 comprising, in order to further reduce the thickness and/or parallax, two stratified-phase- separated composites each comprising a liquid layer 24 and a polymeric layer 22 which alternate in sequence.
  • This stack may be completely built via a bottom up process in which each preceding stratified-phase-separated composite serves as a substrate for the provision of the next stratified-phase-separated composite.
  • the stratified-phase-separated composites of this embodiment each comprise separating or supporting members 25 to enhance the mechanical integrity of the stack or to maintain a constant liquid layer thickness throughout the liquid layer.
  • the supporting members 25 may also help to improve stratification.
  • Each of the stratified-phase-separated composites may be manufactured by providing a layer of a photo-polymerizable stratified-phase-separable material on its appropriate substrate, pattern- wise irradiate the layer to form the supporting members 25 and then further irradiate the sample by means of a flood exposure to induce stratification of the remaining stratified- phase-separable material to form the liquid layer and the polymeric layer.
  • the separating members 25 may also be provided in the stratified-phase-separated composite of the embodiments shown in the previous figures.
  • Fig. 6 shows, schematically, a cross-sectional view of a fifth stacked liquid display cell in accordance with the invention.
  • Fig. 6 shows a stacked liquid cell 100 having a further reduced thickness and parallax by inclusion of two stratified-phase-separated composites having polymeric layers 22 which are stacked back to back.
  • This arrangement has the advantage that robust conventional substrates 2 are located are exterior sides of the stacked liquid cell thus improving mechanical rigidity and ruggedness of the cell 100.
  • both sub-cells are combined with in-plane switching layers 66 as is shown in Fig. 6 all electrodes can be provided on a conventional substrates which enlarges the range of electrode materials which may be suitably used to form the electrodes. In particular, it allows ITO to be used.
  • the stacked liquid cell 100 is conveniently manufactured by manufacturing two sub-cells separately using the single-substrate method and then combining the sub-cells with the polymeric layers 22 facing each other.
  • Fig. 7 shows, schematically, a cross-sectional view of a sixth stacked liquid display cell in accordance with the invention.
  • the stacked liquid cell 120 shown in Fig. 7 is a modification of the cell 100 in that the in-plane switching layers 66 have been replaced with electrode layers 6 to form a sandwich electrode arrangement wherein the sandwich includes more than one or in fact all liquid layers 24. Because a stratified-phase-separated composite is used, the substrate of the polymeric layers 22 separating the liquid layers 24 separating is still relatively thin, eg 1 to 20 ⁇ m, and thus the distance between the top and bottom electrodes 6 is still relatively small.
  • the stacked layers are not independently addressable but are addressable in concert this embodiment may also have useful applications.
  • the liquid layers have a different function. For example, it may be used for sub-pixelation in which each of the liquid layers has the same composition but is oriented differently to reduce viewing angle dependencies. Liquid crystal layers having different thresholds or frequency behavior may be used to obtain dual switching modes.
  • the first sandwiched liquid layer serves as an electro-switchable auxiliary layer for the second sandwiched liquid layer.
  • each of the liquid layers of the embodiments shown in Figs. 2 to 7 has an electrode layer associated with it this is by no means essential for the invention.
  • Liquid layers which are not electro-optical may also be used to advantage.
  • An example of that is the use of a liquid compensation layer for improving the viewing angle dependency of a liquid crystal layer such as a (super) twisted nematic liquid crystal layer.
  • Stacked liquid display cells, and stacked LC display cells in particular come in a large number of varieties each having particular advantages over single-cell display cells. Some particular embodiments are described hereinbelow.
  • the display cell is a red green and blue emitting (RGB) display cell in which three independently addressable electro- optical liquid layers are stacked, each layer dedicated to display one primary color.
  • RGB red green and blue emitting
  • the advantage of such an arrangement is a factor of three gain in active display area and thus brightness compared to a single cell arrangement where RGB colors are generated in triplets of adjacently arranged pixels.
  • Cholesteric LC layers having different pitches to switch color- selectively red green and blue known in the art as such, may be used to implement such a stacked display.
  • switchable guest-host LC containing dyes to generate red green an blue may be used.
  • a second embodiment of a stacked display cell has an electro-optical liquid crystal layer and a further liquid layer serving as a compensation layer for the electro-optical liquid crystal layer.
  • Compensation layers are as such well known in the art and serve to improve the color perception as a function of viewing angle and other viewing angle dependent properties which originate from the use of an electro-optical liquid crystal layer. Since the LC layer and compensation layer are liquid layers the temperature dependence of the LC and compensation property is expected to be similar and consequently the performance of the compensation layer is substantially the same in a large range of temperatures.
  • Stacking may also be advantageously applied to liquid crystal cells in which a single pixel within a single layer is capable of displaying a variety of colors.
  • Such single- layer, multi-color cells are known in the art but it is has proven difficult to realize grey scales with such a cell.
  • By adding a further independently addressable electro-active layer grey scale functionality may be introduced.
  • a stacked liquid cell may be used to provide depth to an image.
  • An example of a liquid cell, in particular a liquid crystal cell, manufactured in accordance with the single substrate method is as follows:
  • a stratified-phase-separable composition having the following composition: 50 wt% liquid crystal material E7, 44.5 wt% photo-polymerizable isobornylmethacrylate (Al) 0.5 wt photo-initiator Irgacure 651 (A2) and
  • a glass substrate which carries a rubbed polyimide alignment layer for orienting the liquid crystal material E7 is provided.
  • the substrate has a thickness of about 1.1 mm. There is no particular reason for the substrate to have this thickness. Thinner conventional substrates of glass or plastic with thicknesses down to 0.4 mm may also be used.
  • the thickness of the alignment layer is estimated to be about 100 to 200 nm.
  • a 10 ⁇ m film of the said stratified-phase-separable composition is coated on the glass substrate using a blade coating apparatus at room temperature. The film 3 thus formed is then exposed to UN light (lamp type: Philips TL-08, 0.5mW/cm 2 ) for 15 minutes at a temperature of 60°C.
  • a light intensity gradient is set up in the direction normal to the substrate.
  • the light intensity being highest near the top of the film, polymerization selectively occurs in the near the film/air interface.
  • the polymer formed upon UN exposure is not miscible with the liquid crystal material E7 and thus phase separates from the liquid crystal material.
  • the' phase separation proceeds in the form of a stratification process in which a distinct polymeric layer is formed on top of the liquid crystal layer of E7, wherein the liquid crystal layer is formed on the substrate side of the polymeric layer.
  • monomeric material Al is selectively depleted at the top of the film, more in particular at the interface of the liquid crystal layer and polymer layer being formed, as a result of which a diffusion gradient in monomer Al (and A3) concentration is set up as a result of which monomer material Al (and A3) is continuously fed to the liquid crystal layer/polymer layer interface which allows the stratification process to proceed further finally resulting in a liquid cell comprising a substrate and a stratified-phase-separated composite comprising an about 5 ⁇ m thick polymeric layer of polymerized Al and A3 monomers and an about 5 ⁇ m thick liquid crystal layer of E7.
  • the liquid crystal material is recovered from the stratified phase-separated composite and its transition temperature is measured.
  • the measured transition temperature is the same as that of virgin liquid crystal material E7, which demonstrates that the liquid crystal layer of the stratified- phase-separated composite essentially consists of liquid crystal material E7.
  • the liquid crystal layer is an electro-optical layer as its reflection/transmission characteristics can be reversibly switched by subjecting the composite to an external electrical field, the electro-optical effect rendered visible by placing the liquid cell between crossed first and second polarizers.
  • the liquid crystal cell has a maximal transmission indicating that the liquid crystal layer LC molecules have a more or less planar alignment.
  • the LC cell sandwiched between electrodes and a suitable voltage applied the LC cell turns dark indicating that LC molecules adopt a homeotropic alignment in which case the light polarized by the first polarizer incident on the LC layer does not experience birefringence as a consequence of which the polarization direction of the incident light is not changed and hence absorbed by the second polarizer. After removal of the voltage the cell turns bright again. This process can be repeated over and again

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Abstract

Une cellule à liquide empilée, telle qu'une cellule à cristal liquide empilée, comprend un empilement de couches de liquide et de couches de substrat entre lesquelles les couches de liquide sont dispersées. L'empilement comprend des couches de substrat liquide et polymérique constituées d'un composite séparé en phase stratifiée. La couche polymérique faisant partie intégrante d'un composite séparé en phase stratifiée, en particulier d'un composite fabriqué selon un procédé à substrat unique, peut présenter une épaisseur relativement faible comparée à une couche de substrat classique, ce qui permet d'obtenir une cellule à liquide empilée présentant une épaisseur réduite ou, plus particulièrement, une cellule à liquide empilée présentant une épaisseur réduite entre les couches de liquide sous-jacentes, offrant ainsi une réduction au niveau des effets de parallaxe. L'invention concerne un procédé de fabrication d'une cellule à liquide qui consiste en la stratification, sur un substrat, d'une couche de composition séparable en phase stratifiée, en une couche de liquide et une couche polymérique afin qu'un composite séparé en phase stratifiée soit formé, la couche polymérique servant de substrat à la cellule à liquide.
PCT/IB2001/002514 2000-12-14 2001-12-12 Cellule a liquide empilee Ceased WO2002048783A2 (fr)

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US10/203,577 US6788360B2 (en) 2000-12-14 2001-12-12 Stacked liquid cell with liquid-polymer stratified phase separated composite
EP01270802A EP1264209A2 (fr) 2000-12-14 2001-12-12 Cellule a liquide empilee
KR1020027010451A KR20020073550A (ko) 2000-12-14 2001-12-12 적층된 액체 셀
JP2002550032A JP2004515824A (ja) 2000-12-14 2001-12-12 スタックドリキッドセル

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EP00204529 2000-12-14
EP00204529.2 2000-12-14
EP01201395 2001-04-17
EP01201395.9 2001-04-17
EP01204081 2001-10-25
EP01204081.2 2001-10-25

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PCT/IB2001/002514 Ceased WO2002048783A2 (fr) 2000-12-14 2001-12-12 Cellule a liquide empilee
PCT/IB2001/002511 Ceased WO2002048281A1 (fr) 2000-12-14 2001-12-12 Composite stratifie a separation de phase comprenant un colorant de photopolymerisation
PCT/IB2001/002512 Ceased WO2002048282A1 (fr) 2000-12-14 2001-12-12 Composite stratifie a separation de phase, avec couche polymere reticulee

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020397A3 (fr) * 2006-08-15 2008-04-10 Koninkl Philips Electronics Nv Composite à phases séparées pour applications microfluidiques
US7561244B2 (en) 2003-08-06 2009-07-14 Koninklijke Philips Electronics N.V. Liquid-filled composite with supporting members covalenty bonded to the substrates
US10254553B2 (en) 2005-09-09 2019-04-09 Koninklijke Philips N.V. Method of producing a lenticular device for an autostereoscopic display apparatus

Families Citing this family (202)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6939587B1 (en) * 1999-09-03 2005-09-06 Kent State University Fabrication of aligned crystal cell/film by simultaneous alignment and phase separation
CN1273856C (zh) * 2000-12-14 2006-09-06 皇家菲利浦电子有限公司 液晶显示叠层材料及其制造方法
SG105534A1 (en) * 2001-03-07 2004-08-27 Bayer Ag Multilayered arrangement for electro-optical devices
KR20040070214A (ko) * 2001-12-13 2004-08-06 소니 인터내셔널(유로파) 게엠베하 복합 재료 형성 방법
US6707517B2 (en) * 2001-12-26 2004-03-16 Eastman Kodak Company Transparent field spreading layer for dispersed liquid crystal coatings
US7378124B2 (en) * 2002-03-01 2008-05-27 John James Daniels Organic and inorganic light active devices and methods for making the same
CN1678948A (zh) 2002-03-27 2005-10-05 艾利丹尼森公司 可转换的电－光层压制品
US7261920B2 (en) * 2002-04-24 2007-08-28 Sipix Imaging, Inc. Process for forming a patterned thin film structure on a substrate
US8002948B2 (en) * 2002-04-24 2011-08-23 Sipix Imaging, Inc. Process for forming a patterned thin film structure on a substrate
CN1272659C (zh) * 2002-05-31 2006-08-30 夏普株式会社 液晶显示装置及其生产方法
US7799369B2 (en) * 2002-11-19 2010-09-21 Daniels John J Organic and inorganic light active devices and methods for making the same
US7289176B2 (en) * 2002-12-19 2007-10-30 Intel Corporation Single panel, active matrix, full color, cholesteric LCD cell configuration
TWI337679B (en) * 2003-02-04 2011-02-21 Sipix Imaging Inc Novel compositions and assembly process for liquid crystal display
TWI338151B (en) * 2003-03-28 2011-03-01 Fujifilm Corp Liquid crystal display device
US6950157B2 (en) * 2003-06-05 2005-09-27 Eastman Kodak Company Reflective cholesteric liquid crystal display with complementary light-absorbing layer
EP1636642A1 (fr) * 2003-06-13 2006-03-22 Koninklijke Philips Electronics N.V. Dispositif d'affichage electrophoretique et son procede de fabrication
CN100443971C (zh) * 2003-08-06 2008-12-17 皇家飞利浦电子股份有限公司 包含聚合物和液体的分层分相复合物及其制造方法
US7717764B2 (en) * 2003-09-12 2010-05-18 Bridgestone Corporation Method of manufacturing image display panel and image display panel
GB0325747D0 (en) * 2003-11-05 2003-12-10 Koninkl Philips Electronics Nv Active matrix display device and method of producing the same
TWI257506B (en) 2003-11-18 2006-07-01 Ind Tech Res Inst Photosensitive material for non-substrate liquid crystal display
RU2258285C1 (ru) * 2003-11-21 2005-08-10 Самсунг Электроникс Ко., Лтд. Планарная антенна
US7377032B2 (en) * 2003-11-21 2008-05-27 Mitsui Mining & Smelting Co., Ltd. Process for producing a printed wiring board for mounting electronic components
US7372523B2 (en) * 2004-03-03 2008-05-13 Sony Ericsson Mobile Communications Ab Display apparatuses having layered liquid crystal displays
JP4671093B2 (ja) * 2004-03-31 2011-04-13 Ｄｉｃ株式会社 高分子分散型液晶表示素子用組成物及び高分子分散型液晶表示素子
JP4172459B2 (ja) * 2004-04-22 2008-10-29 セイコーエプソン株式会社 電気光学装置及び電子機器
US20050237473A1 (en) * 2004-04-27 2005-10-27 Stephenson Stanley W Coatable conductive layer
CN100561304C (zh) * 2004-06-25 2009-11-18 鸿富锦精密工业（深圳）有限公司 液晶封装用玻璃基板及液晶显示装置
DE602005025229D1 (de) * 2004-08-27 2011-01-20 Arcelik Anonim Sirketi Tuzla Haushaltsgerät
US20060139529A1 (en) * 2004-08-31 2006-06-29 Shie-Chang Jeng Manufacturing method for a transflective liquid crystal display device
US7457037B2 (en) * 2004-09-27 2008-11-25 Corning Incorporated Transparent polarizing optical products and fabrication thereof
JP2006163343A (ja) * 2004-11-15 2006-06-22 Nitto Denko Corp 楕円偏光板およびそれを用いた画像表示装置
KR101108360B1 (ko) * 2004-12-30 2012-01-25 엘지디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
JP4344726B2 (ja) 2004-12-30 2009-10-14 エルジー ディスプレイ カンパニー リミテッド 液晶表示装置およびその製造方法
MX2007008258A (es) 2005-01-10 2007-08-22 Avery Dennison Corp Etiquetas enrollables movibles.
TWI315426B (en) * 2005-05-10 2009-10-01 Chi Mei Optoelectronics Corp Method for fabricating liquid crystal display
CN100410738C (zh) * 2005-06-10 2008-08-13 奇美电子股份有限公司 液晶显示器的制造方法
CN101223474B (zh) * 2005-07-08 2010-07-14 富士通株式会社 层叠型反射式液晶显示元件
JP4862310B2 (ja) * 2005-07-25 2012-01-25 富士ゼロックス株式会社 画像表示装置
JP4682767B2 (ja) 2005-09-21 2011-05-11 ブラザー工業株式会社 電気泳動表示媒体の隔壁とスペーサとを基板上に形成する形成方法、及び、隔壁及びスペーサが電気泳動表示媒体の隔壁とスペーサとを基板上に形成する形成方法によって形成された電気泳動表示媒体
GB0522968D0 (en) 2005-11-11 2005-12-21 Popovich Milan M Holographic illumination device
JP4740784B2 (ja) * 2006-03-31 2011-08-03 日本放送協会 液晶光変調器の製造方法、液晶光変調器および液晶表示装置
GB0718706D0 (en) 2007-09-25 2007-11-07 Creative Physics Ltd Method and apparatus for reducing laser speckle
US20070268446A1 (en) * 2006-05-22 2007-11-22 Shie-Chang Jeng Liquid crystal device and method for forming the same
US7545557B2 (en) * 2006-10-30 2009-06-09 Xerox Corporation Color display device
US7646015B2 (en) * 2006-10-31 2010-01-12 Semiconductor Energy Laboratory Co., Ltd. Manufacturing method of semiconductor device and semiconductor device
KR20090081001A (ko) 2006-11-02 2009-07-27 애버리 데니슨 코포레이션 세척 가능 필름용 에멀션 접착제
KR100811477B1 (ko) * 2006-11-10 2008-03-07 엘지전자 주식회사 디스플레이 소자
KR101311299B1 (ko) * 2006-12-07 2013-09-25 엘지디스플레이 주식회사 반사투과형 액정표시장치 및 제조방법
JP4999633B2 (ja) * 2007-10-15 2012-08-15 日東電工株式会社 偏光膜、及び液晶表示装置
JP5000722B2 (ja) * 2007-10-15 2012-08-15 シャープ株式会社 液晶表示装置
CN101520563A (zh) * 2008-02-29 2009-09-02 深圳富泰宏精密工业有限公司 高分子散射型半穿反液晶显示组件及其制作方法
WO2009116175A1 (fr) * 2008-03-21 2009-09-24 富士通株式会社 Élément d'affichage, dispositif électronique et téléphone mobile
TWI397742B (zh) * 2008-03-28 2013-06-01 Chi Mei Comm Systems Inc 高分子散射型半穿反液晶顯示器及其製作方法
WO2009146432A1 (fr) * 2008-05-30 2009-12-03 Colorado State University Research Foundation Dispositif de source chimique à base de plasma et procédé d'utilisation de celle-ci
US8349210B2 (en) 2008-06-27 2013-01-08 Transitions Optical, Inc. Mesogenic stabilizers
US8628685B2 (en) 2008-06-27 2014-01-14 Transitions Optical, Inc Mesogen-containing compounds
US8623238B2 (en) 2008-06-27 2014-01-07 Transitions Optical, Inc. Mesogenic stabilizers
US8613868B2 (en) 2008-06-27 2013-12-24 Transitions Optical, Inc Mesogenic stabilizers
US8431039B2 (en) 2008-06-27 2013-04-30 Transitions Optical, Inc. Mesogenic stabilizers
US7910020B2 (en) 2008-06-27 2011-03-22 Transitions Optical, Inc. Liquid crystal compositions comprising mesogen containing compounds
US7910019B2 (en) 2008-06-27 2011-03-22 Transitions Optical, Inc. Mesogen containing compounds
US8482858B2 (en) * 2008-09-04 2013-07-09 Innovega Inc. System and apparatus for deflection optics
US8520309B2 (en) * 2008-09-04 2013-08-27 Innovega Inc. Method and apparatus to process display and non-display information
US8786520B2 (en) * 2008-09-04 2014-07-22 Innovega, Inc. System and apparatus for display panels
US8142016B2 (en) 2008-09-04 2012-03-27 Innovega, Inc. Method and apparatus for constructing a contact lens with optics
US8922898B2 (en) 2008-09-04 2014-12-30 Innovega Inc. Molded lens with nanofilaments and related methods
US8441731B2 (en) * 2008-09-04 2013-05-14 Innovega, Inc. System and apparatus for pixel matrix see-through display panels
JP5140525B2 (ja) * 2008-09-12 2013-02-06 日東電工株式会社 偏光膜およびその製造方法
US20100171921A1 (en) * 2009-01-06 2010-07-08 Industrial Technology Research Institute Liquid crystal display
US20100175392A1 (en) * 2009-01-15 2010-07-15 Malloy Kevin J Electrocaloric refrigerator and multilayer pyroelectric energy generator
CN102307914A (zh) * 2009-02-09 2012-01-04 默克专利有限公司 用于电泳显示器的颗粒
ES2622956T3 (es) 2009-03-30 2017-07-10 Avery Dennison Corporation Etiqueta adhesiva retirable que contiene una capa de película polimérica que tiene afinidad por el agua
US9334425B2 (en) 2009-03-30 2016-05-10 Avery Dennison Corporation Removable adhesive label containing high tensile modulus polymeric film layer
PL2414473T3 (pl) 2009-03-30 2015-05-29 Avery Dennison Corp Usuwalna przylepna etykieta zawierająca naturalnie kurczliwą folię polimeryczną
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
US9335604B2 (en) 2013-12-11 2016-05-10 Milan Momcilo Popovich Holographic waveguide display
JP5606013B2 (ja) * 2009-06-22 2014-10-15 Ｊｓｒ株式会社 光学部材及びその製造方法
KR20110098454A (ko) * 2010-02-26 2011-09-01 (주)엔디스 액정 혼합물, 상기 액정 혼합물을 사용한 액정 표시 장치 및 그 제조 방법
JP2011208079A (ja) * 2010-03-30 2011-10-20 Hoya Corp 二色性色素含有液および偏光素子
US8921447B2 (en) * 2010-04-08 2014-12-30 The University Of Iowa Research Foundation Photo-enforced stratification of polymeric materials
US9135864B2 (en) 2010-05-14 2015-09-15 Dolby Laboratories Licensing Corporation Systems and methods for accurately representing high contrast imagery on high dynamic range display systems
US9864243B2 (en) * 2010-05-14 2018-01-09 Dolby Laboratories Licensing Corporation High dynamic range displays using filterless LCD(s) for increasing contrast and resolution
WO2012122104A2 (fr) 2011-03-09 2012-09-13 Dolby Laboratories Licensing Corporation Affichages couleur et à échelle de gris à contraste élevé
KR101605821B1 (ko) 2010-09-10 2016-03-24 삼성디스플레이 주식회사 표시 장치 및 이의 제조 방법
JP5691467B2 (ja) * 2010-12-10 2015-04-01 旭硝子株式会社 投射型表示装置
KR101760848B1 (ko) 2011-04-05 2017-07-25 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
WO2012136970A1 (fr) 2011-04-07 2012-10-11 Milan Momcilo Popovich Dispositif d'élimination de la granularité laser basé sur une diversité angulaire
US9329430B2 (en) * 2011-04-28 2016-05-03 Dolby Laboratories Licensing Corporation Dual panel display with cross BEF collimator and polarization-preserving diffuser
US9052536B2 (en) * 2011-05-10 2015-06-09 Anthony, Inc. Display case door with transparent LCD panel
US8988638B2 (en) * 2011-05-25 2015-03-24 Yingqiu Jiang Polarizing retro-reflective sheeting comprising a cholesteric liquid crystal polymer film
KR20130012782A (ko) * 2011-07-26 2013-02-05 삼성디스플레이 주식회사 광학 필름, 이의 제조 방법, 및 이를 갖는 표시 장치
US20140204455A1 (en) 2011-08-24 2014-07-24 Milan Momcilo Popovich Wearable data display
KR101287546B1 (ko) * 2011-08-24 2013-07-31 포항공과대학교 산학협력단 가시광 광촉매에 의한 자유 라디칼 중합 반응을 이용한 메타크릴레이트계 폴리머의 제조 방법
US10670876B2 (en) 2011-08-24 2020-06-02 Digilens Inc. Waveguide laser illuminator incorporating a despeckler
WO2016020630A2 (fr) 2014-08-08 2016-02-11 Milan Momcilo Popovich Illuminateur laser en guide d'ondes comprenant un dispositif de déchatoiement
KR101916948B1 (ko) * 2011-12-12 2018-11-08 엘지디스플레이 주식회사 표시장치
KR101876540B1 (ko) * 2011-12-28 2018-07-10 삼성디스플레이 주식회사 가요성 표시 장치 및 가요성 표시 장치의 제조 방법
WO2013102759A2 (fr) 2012-01-06 2013-07-11 Milan Momcilo Popovich Capteur d'image à contact utilisant des réseaux de bragg commutables
CN103205139B (zh) * 2012-01-16 2014-10-22 清华大学 可聚合染料单体、彩色聚合物乳液及其制备方法
CN103562802B (zh) 2012-04-25 2016-08-17 罗克韦尔柯林斯公司 全息广角显示器
US9456744B2 (en) 2012-05-11 2016-10-04 Digilens, Inc. Apparatus for eye tracking
KR101989790B1 (ko) 2012-06-08 2019-06-18 삼성디스플레이 주식회사 표시 패널, 이를 포함하는 표시 장치 및 이의 제조 방법
CN102736304A (zh) 2012-06-21 2012-10-17 京东方科技集团股份有限公司 单基板显示面板及其制造方法
US9086596B2 (en) 2012-06-27 2015-07-21 Kent State University Surface-stabilized IPS LCD
KR102005914B1 (ko) 2012-06-29 2019-08-01 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR20140016593A (ko) 2012-07-30 2014-02-10 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR101703985B1 (ko) 2012-08-22 2017-02-08 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR20140027794A (ko) 2012-08-27 2014-03-07 삼성디스플레이 주식회사 표시 장치 및 이의 제조 방법
KR20140048459A (ko) 2012-10-15 2014-04-24 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR20140058773A (ko) 2012-11-06 2014-05-15 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
KR20140065271A (ko) 2012-11-21 2014-05-29 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR20140089015A (ko) 2012-12-31 2014-07-14 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
KR20140089650A (ko) 2013-01-03 2014-07-16 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR101618701B1 (ko) 2013-01-10 2016-05-10 삼성디스플레이 주식회사 액정 표시 장치
KR20140095120A (ko) 2013-01-16 2014-08-01 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
KR101663595B1 (ko) 2013-01-16 2016-10-17 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR20140094916A (ko) 2013-01-23 2014-07-31 삼성디스플레이 주식회사 표시 장치
US9117636B2 (en) 2013-02-11 2015-08-25 Colorado State University Research Foundation Plasma catalyst chemical reaction apparatus
US9269544B2 (en) 2013-02-11 2016-02-23 Colorado State University Research Foundation System and method for treatment of biofilms
US9532826B2 (en) 2013-03-06 2017-01-03 Covidien Lp System and method for sinus surgery
US9555145B2 (en) 2013-03-13 2017-01-31 Covidien Lp System and method for biofilm remediation
KR20140127675A (ko) * 2013-04-25 2014-11-04 동우 화인켐 주식회사 광학 적층체
US10209517B2 (en) 2013-05-20 2019-02-19 Digilens, Inc. Holographic waveguide eye tracker
KR20140142965A (ko) * 2013-06-05 2014-12-15 삼성디스플레이 주식회사 표시 장치
KR20140143646A (ko) * 2013-06-07 2014-12-17 삼성디스플레이 주식회사 터치 센서를 포함하는 표시 장치 및 그 제조 방법
US9727772B2 (en) 2013-07-31 2017-08-08 Digilens, Inc. Method and apparatus for contact image sensing
KR102057970B1 (ko) * 2013-08-01 2019-12-23 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
US9846343B2 (en) * 2013-08-14 2017-12-19 Boe Technology Group Co., Ltd. Display device and display control method
KR20150030105A (ko) 2013-09-11 2015-03-19 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
KR102106004B1 (ko) 2013-10-22 2020-05-04 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
CN103792733A (zh) * 2014-01-28 2014-05-14 北京京东方显示技术有限公司 配向膜的制造方法
US10237962B2 (en) 2014-02-26 2019-03-19 Covidien Lp Variable frequency excitation plasma device for thermal and non-thermal tissue effects
JP6446810B2 (ja) * 2014-03-28 2019-01-09 大日本印刷株式会社 位相差フィルム、光学フィルム、光学フィルムの製造方法
KR20150118658A (ko) 2014-04-14 2015-10-23 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
KR20150121389A (ko) * 2014-04-18 2015-10-29 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
CN104133289B (zh) * 2014-07-15 2017-03-29 深圳市国华光电研究院 一种电润湿显示器件间隔物的制造方法
US10359736B2 (en) 2014-08-08 2019-07-23 Digilens Inc. Method for holographic mastering and replication
KR101676771B1 (ko) * 2014-09-11 2016-11-17 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
WO2016042283A1 (fr) 2014-09-19 2016-03-24 Milan Momcilo Popovich Procédé et appareil de production d'images d'entrée pour affichages à guides d'ondes holographiques
US10361456B2 (en) 2014-09-26 2019-07-23 Samsung Electronics Co., Ltd. Electrolyte, method of preparing the electrolyte, and secondary battery including the electrolyte
US10423222B2 (en) 2014-09-26 2019-09-24 Digilens Inc. Holographic waveguide optical tracker
KR101642481B1 (ko) * 2014-10-30 2016-07-26 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
CN104375307A (zh) * 2014-11-11 2015-02-25 深圳市华星光电技术有限公司 液晶显示面板及其制备方法
US20160131936A1 (en) * 2014-11-11 2016-05-12 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal display panel and method of manufaturing same
KR20160086008A (ko) * 2015-01-08 2016-07-19 삼성디스플레이 주식회사 표시 장치
US20180275402A1 (en) 2015-01-12 2018-09-27 Digilens, Inc. Holographic waveguide light field displays
EP3245444B1 (fr) 2015-01-12 2021-09-08 DigiLens Inc. Affichage à guide d'ondes isolé de l'environnement
CN107533137A (zh) 2015-01-20 2018-01-02 迪吉伦斯公司 全息波导激光雷达
KR20160093140A (ko) * 2015-01-28 2016-08-08 삼성디스플레이 주식회사 액정 표시 장치
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
WO2016146963A1 (fr) 2015-03-16 2016-09-22 Popovich, Milan, Momcilo Dispositif de guide d'onde incorporant un conduit de lumière
US10591756B2 (en) 2015-03-31 2020-03-17 Digilens Inc. Method and apparatus for contact image sensing
US20170017100A1 (en) * 2015-07-17 2017-01-19 Iris Optronics Inc. Smart curtain film
CN105096746B (zh) * 2015-09-11 2018-01-16 京东方科技集团股份有限公司 一种显示器、其制备方法及感光薄膜的制备方法
JP6256445B2 (ja) * 2015-09-30 2018-01-10 ダイキン工業株式会社 Ｉｃカートリッジ及環境調整装置
WO2017060665A1 (fr) 2015-10-05 2017-04-13 Milan Momcilo Popovich Afficheur à guide d'ondes
KR20170059053A (ko) * 2015-11-19 2017-05-30 삼성디스플레이 주식회사 액정 표시 장치
EP3398007B1 (fr) 2016-02-04 2024-09-11 DigiLens, Inc. Dispositif de poursuite optique de guide d'onde
WO2017162999A1 (fr) 2016-03-24 2017-09-28 Popovich Milan Momcilo Procédé et appareil pour fournir un dispositif guide d'ondes holographique sélectif en polarisation
CN109154717B (zh) 2016-04-11 2022-05-13 迪吉伦斯公司 用于结构光投射的全息波导设备
US9687087B1 (en) * 2016-06-16 2017-06-27 Anthony, Inc. Display case door assembly with vacuum panel and lighting features
US10524849B2 (en) 2016-08-02 2020-01-07 Covidien Lp System and method for catheter-based plasma coagulation
WO2018102834A2 (fr) 2016-12-02 2018-06-07 Digilens, Inc. Dispositif de guide d'ondes à éclairage de sortie uniforme
US10545346B2 (en) 2017-01-05 2020-01-28 Digilens Inc. Wearable heads up displays
US11768030B2 (en) 2017-08-10 2023-09-26 Cooler Screens Inc. Smart movable closure system for cooling cabinet
US10672032B2 (en) 2017-08-10 2020-06-02 Cooler Screens Inc. Intelligent marketing and advertising platform
US10769666B2 (en) 2017-08-10 2020-09-08 Cooler Screens Inc. Intelligent marketing and advertising platform
US12118510B2 (en) 2017-08-10 2024-10-15 Cooler Screens Inc. Intelligent marketing and advertising platform
US11698219B2 (en) 2017-08-10 2023-07-11 Cooler Screens Inc. Smart movable closure system for cooling cabinet
US11763252B2 (en) 2017-08-10 2023-09-19 Cooler Screens Inc. Intelligent marketing and advertising platform
US10859868B2 (en) * 2017-08-11 2020-12-08 Coopervision International Limited Flexible liquid crystal cells and lenses
US10942430B2 (en) 2017-10-16 2021-03-09 Digilens Inc. Systems and methods for multiplying the image resolution of a pixelated display
CN109705882A (zh) * 2017-10-26 2019-05-03 江苏集萃智能液晶科技有限公司 一种液晶介质、偏振分离膜及其制备方法
EP4517439A3 (fr) 2018-01-08 2025-05-14 DigiLens Inc. Systèmes et procédés de fabrication de cellules de guide d'ondes
KR102768598B1 (ko) 2018-01-08 2025-02-13 디지렌즈 인코포레이티드. 도파관 셀 내의 홀로그래픽 격자의 높은 처리능력의 레코딩을 위한 시스템 및 방법
KR20250004154A (ko) 2018-01-08 2025-01-07 디지렌즈 인코포레이티드. 광 도파관의 제조 방법
US10914950B2 (en) 2018-01-08 2021-02-09 Digilens Inc. Waveguide architectures and related methods of manufacturing
ES2923577T3 (es) * 2018-01-17 2022-09-28 Anthony Inc Puerta para el montaje de un medio de visualización electrónico extraíble
CN119471906A (zh) 2018-03-16 2025-02-18 迪吉伦斯公司 包含双折射控制的全息波导及用于它们的制造的方法
CN108873426B (zh) * 2018-06-27 2021-06-29 武汉华星光电技术有限公司 显示面板及其制造方法、液晶显示装置
WO2020023779A1 (fr) 2018-07-25 2020-01-30 Digilens Inc. Systèmes et procédés pour fabriquer une structure optique multicouches
US11003016B2 (en) 2018-09-21 2021-05-11 Coopervision International Limited Flexible, adjustable lens power liquid crystal cells and lenses
WO2022087307A1 (fr) * 2020-10-21 2022-04-28 Exciting Technology LLC Système, procédé et appareil de compensation atmosphérique non mécanique à grande vitesse
US11835839B2 (en) 2018-10-23 2023-12-05 Exciting Technology LLC System, method and apparatus for high speed non-mechanical atmospheric compensation
KR102207194B1 (ko) * 2018-12-20 2021-01-22 베바스토 에스이 액정 배열를 포함하는 복합재를 갖는 차량 창유리
WO2020149956A1 (fr) 2019-01-14 2020-07-23 Digilens Inc. Affichage de guide d'ondes holographique avec couche de commande de lumière
WO2020163524A1 (fr) 2019-02-05 2020-08-13 Digilens Inc. Procédés de compensation de non-uniformité de surface optique
US20220283377A1 (en) 2019-02-15 2022-09-08 Digilens Inc. Wide Angle Waveguide Display
WO2020168348A1 (fr) 2019-02-15 2020-08-20 Digilens Inc. Procédés et appareils pour fournir un affichage de guide d'ondes holographique à l'aide de réseaux intégrés
WO2020186113A1 (fr) 2019-03-12 2020-09-17 Digilens Inc. Rétroéclairage de guide d'ondes holographique et procédés de fabrication associés
US10514722B1 (en) 2019-03-29 2019-12-24 Anthony, Inc. Door for mounting a removable electronic display
JP7287069B2 (ja) * 2019-04-02 2023-06-06 凸版印刷株式会社 透明導電性ガスバリア積層体及びその製造方法、並びにデバイス
WO2020247930A1 (fr) 2019-06-07 2020-12-10 Digilens Inc. Guides d'ondes incorporant des réseaux transparents et réfléchissants et procédés de fabrication associés
CN114341729A (zh) 2019-07-29 2022-04-12 迪吉伦斯公司 用于使像素化显示器的图像分辨率和视场倍增的方法和设备
JP2022546413A (ja) 2019-08-29 2022-11-04 ディジレンズ インコーポレイテッド 真空回折格子および製造方法
US20210080759A1 (en) * 2019-09-13 2021-03-18 Facebook Technologies, Llc Stacked liquid crystal structures
CN111488065A (zh) * 2020-05-26 2020-08-04 深圳市宝立创科技有限公司 一种胆甾相液晶手写板及其制备方法
WO2022140763A1 (fr) 2020-12-21 2022-06-30 Digilens Inc. Suppression de la luminescence de l'œil dans des affichages à base de guide d'ondes
US12399326B2 (en) 2021-01-07 2025-08-26 Digilens Inc. Grating structures for color waveguides
EP4288831A4 (fr) 2021-03-05 2025-01-15 Digilens Inc. Structures périodiques évacuées et leurs procédés de fabrication
TWI850686B (zh) * 2022-06-27 2024-08-01 住華科技股份有限公司 測試元件及其形成方法與測試方法

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1325354C (fr) * 1985-12-09 1993-12-21 Yasushi Umeda Materiau d'impression a base de resine photosensible
US4891152A (en) * 1987-12-28 1990-01-02 Hughes Aircraft Company Dispersion of liquid crystal droplets in a photopolymerized matrix and devices made therefrom
DE3853822T2 (de) * 1987-12-30 1995-12-14 Hughes Aircraft Co In acrylatpolymer dispergiertes flüssigkristallmaterial und dieses verwendende vorrichtungen.
JP2764275B2 (ja) * 1988-08-03 1998-06-11 キヤノン株式会社 表示素子
NL9000808A (nl) 1990-04-06 1991-11-01 Koninkl Philips Electronics Nv Vloeibaar kristallijn materiaal en beeldweergeefcel die dit materiaal bevat.
JP3060656B2 (ja) * 1990-11-26 2000-07-10 セイコーエプソン株式会社 液晶表示素子
KR960002202B1 (ko) * 1991-02-04 1996-02-13 가부시끼가이샤 한도다이 에네르기 겐뀨쇼 액정 전기 광학 장치 제작 방법
JPH06337404A (ja) * 1991-02-25 1994-12-06 Sumitomo Electric Ind Ltd 液晶表示素子およびその製造方法
ATE179259T1 (de) * 1992-05-18 1999-05-15 Univ Kent State Ohio Flüssigkristalline, lichtmodulierende vorrichtung und material
EP0575791B1 (fr) * 1992-06-10 1997-05-07 Sharp Corporation Couche composite de cristaux liquides de type dispersion, méthode pour sa production et matériau de cristaux liquides utilisé
US5498450A (en) * 1992-11-18 1996-03-12 Fuji Xerox Co., Ltd. Liquid crystal-polymer composite film, electro-optical element using the same, and process for producing electro-optical element
TW289095B (fr) 1993-01-11 1996-10-21
JPH06273726A (ja) * 1993-03-18 1994-09-30 Sumitomo Electric Ind Ltd 液晶複合膜およびその製造方法
JPH0713138A (ja) * 1993-06-29 1995-01-17 Casio Comput Co Ltd 高分子分散型液晶表示素子
US6025897A (en) 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US5858268A (en) * 1995-06-28 1999-01-12 Ag Technology Co., Ltd. Liquid crystal optical element, a liquid crystal display element and a projection type liquid crystal display apparatus
JP3358935B2 (ja) * 1995-10-02 2002-12-24 シャープ株式会社 液晶表示素子およびその製造方法
JPH09101508A (ja) * 1995-10-03 1997-04-15 Seiko Epson Corp 高分子分散型液晶電気光学素子及びその製造方法
US6197209B1 (en) * 1995-10-27 2001-03-06 Lg. Philips Lcd Co., Ltd. Method of fabricating a substrate
US5903330A (en) 1995-10-31 1999-05-11 Rolic Ag Optical component with plural orientation layers on the same substrate wherein the surfaces of the orientation layers have different patterns and direction
US5942157A (en) * 1996-07-12 1999-08-24 Science Applications International Corporation Switchable volume hologram materials and devices
JP4278294B2 (ja) * 1997-08-08 2009-06-10 タイコ・エレクトロニクス・コーポレイション 液晶複合体およびそれを用いた装置
US6177968B1 (en) * 1997-09-01 2001-01-23 Canon Kabushiki Kaisha Optical modulation device with pixels each having series connected electrode structure
US5948487A (en) * 1997-09-05 1999-09-07 3M Innovative Properties Company Anisotropic retardation layers for display devices
JP3591699B2 (ja) * 1997-10-09 2004-11-24 日東電工株式会社 偏光素子、光学素子、照明装置及び液晶表示装置
US5945203A (en) * 1997-10-14 1999-08-31 Zms Llc Stratified composite dielectric and method of fabrication
US5949508A (en) 1997-12-10 1999-09-07 Kent State University Phase separated composite organic film and methods for the manufacture thereof
JPH11242215A (ja) * 1998-02-26 1999-09-07 Alps Electric Co Ltd 反射型液晶表示装置
CN1213327C (zh) 1998-03-19 2005-08-03 松下电器产业株式会社 液晶显示装置及其制造方法
JP2000206515A (ja) * 1998-11-13 2000-07-28 Matsushita Electric Ind Co Ltd 調光体、光学的素子及び電気的素子、並びにその製造方法
TW498179B (en) * 1998-11-13 2002-08-11 Matsushita Electric Industrial Co Ltd Light control element, optical device, and electrical device, and method of producing thereof
JP3310234B2 (ja) * 1999-02-25 2002-08-05 シャープ株式会社 反射型液晶表示装置用反射板の製造方法
TW200806451A (en) * 1999-10-21 2008-02-01 Konica Minolta Opto Inc Optical film, its manufacturing method and liquid crystal display device using it
CA2298345A1 (fr) * 2000-02-14 2001-08-14 Universite Laval Photopolymere sensible au rayonnement du proche infrarouge et materiaux holographiques composes de cristaux liquides a base de dispersions de ce type de photopolymere
CN1273856C (zh) 2000-12-14 2006-09-06 皇家菲利浦电子有限公司 液晶显示叠层材料及其制造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7561244B2 (en) 2003-08-06 2009-07-14 Koninklijke Philips Electronics N.V. Liquid-filled composite with supporting members covalenty bonded to the substrates
US10254553B2 (en) 2005-09-09 2019-04-09 Koninklijke Philips N.V. Method of producing a lenticular device for an autostereoscopic display apparatus
US10416467B2 (en) 2005-09-09 2019-09-17 Koninklijke Philips N.V. Lenticular device for an autostereoscopic display apparratus and method of producing the same
WO2008020397A3 (fr) * 2006-08-15 2008-04-10 Koninkl Philips Electronics Nv Composite à phases séparées pour applications microfluidiques

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US20030032713A1 (en) 2003-02-13
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WO2002048281A1 (fr) 2002-06-20
US7123319B2 (en) 2006-10-17
US20020196390A1 (en) 2002-12-26
ATE416244T1 (de) 2008-12-15
US20030022002A1 (en) 2003-01-30
US20030038912A1 (en) 2003-02-27
CN1422321A (zh) 2003-06-04
WO2002048282A1 (fr) 2002-06-20
WO2002042832A2 (fr) 2002-05-30
KR20020077439A (ko) 2002-10-11
CN1422390A (zh) 2003-06-04
KR20020075914A (ko) 2002-10-07
CN1422391A (zh) 2003-06-04
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JP2004515632A (ja) 2004-05-27
US6788360B2 (en) 2004-09-07
CN1422322A (zh) 2003-06-04
KR20020073550A (ko) 2002-09-26
WO2002042832A3 (fr) 2002-08-01
KR20020075912A (ko) 2002-10-07
EP1257873A2 (fr) 2002-11-20
US6818152B2 (en) 2004-11-16
US6764614B2 (en) 2004-07-20
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JP2004515633A (ja) 2004-05-27
WO2002048783A3 (fr) 2002-08-15

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